There are several synonyms that can be used in place of the word "gaincoming." Some of these include "incoming," "incoming revenue," "incoming resources," "incoming funds," "incoming investment," and "incoming capital." These synonyms all refer to the act of receiving or acquiring something, such as money, resources, or investments, that provide a benefit or advantage to an individual or organization. By using alternate synonyms for "gaincoming," writers can add variety and interest to their language, while still conveying the original meaning and intended context of the word.